HTTP response header

The Server response-header field contains information about the software used by the web server to handle the request.

Header usage statistics

Server response header information and usage statistics.

Websites using header Server 49,959,442
Percentage of websites that use Server header 93.16%
Total discovered header values 58,323
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Connected technologies

Technologies that utilize the header

Apache, category Web Servers, total 19,571,954 websites
Amazon Cloudfront, category Content Delivery Networks, total 294,996 websites
Amazon S3, category Miscellaneous, total 156,755 websites
Amazon ELB, category Load Balancer, total 156,340 websites
Amazon EC2, category Web Servers, total 79,747 websites
Akamai, category Content Delivery Networks, total 73,816 websites
Allegro RomPager, category Web Servers, total 545 websites
AOLserver, category Web Servers, total 284 websites
Akka HTTP, category Web Application Frameworks, total 92 websites
Airee, category Content Delivery Networks, total 87 websites

Distribution by websites popularity

Server detection in the top websites by popularity

Top 10k sites 12,189 websites
Top 100k sites 109,339 websites
Top 1m sites 1,016,917 websites

Websites utilizing Server

List of websites that use Server header

Domain Country Rank Contacts United States of America 1 United States of America 3 United States of America 4 United States of America 4 United States of America 5 United States of America 5
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Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common Server header values

Header value Value prevalence
Apache 29.58%
nginx 21.42%
cloudflare 7.05%
openresty 4.32%
Squarespace 3.21%
LiteSpeed 3.06%
Microsoft-IIS/8.5 2.58%
nginx/1.16.1 2.40%
Apache/2 1.76%
Microsoft-IIS/10.0 1.58%
Apache/2.4.46 (Unix) 1.21%
Microsoft-IIS/7.5 0.90%
nginx/1.18.0 0.70%
Apache/2.4.25 (Debian) 0.61%
DPS/1.11.6 0.57%
nginx/1.19.10 0.52%
GSE 0.52%
Apache/2.4.29 (Ubuntu) 0.45%
BitNinja Captcha Server 0.43%
Microsoft-HTTPAPI/2.0 0.42%